mirror of
https://github.com/JKorf/CryptoExchange.Net.git
synced 2026-08-21 21:33:01 +00:00
Feature/system.text.json (#192)
Initial support for System.Text.Json and some refactoring
This commit is contained in:
Jan Korf
@@ -0,0 +1,318 @@
|
||||
using CryptoExchange.Net.Converters.MessageParsing;
|
||||
using CryptoExchange.Net.Interfaces;
|
||||
using CryptoExchange.Net.Objects;
|
||||
using Newtonsoft.Json;
|
||||
using Newtonsoft.Json.Linq;
|
||||
using System;
|
||||
using System.Collections.Generic;
|
||||
using System.IO;
|
||||
using System.Linq;
|
||||
using System.Text;
|
||||
|
||||
namespace CryptoExchange.Net.Converters.JsonNet
|
||||
{
|
||||
/// <summary>
|
||||
/// Json.Net message accessor
|
||||
/// </summary>
|
||||
public abstract class JsonNetMessageAccessor : IMessageAccessor
|
||||
{
|
||||
/// <summary>
|
||||
/// The json token loaded
|
||||
/// </summary>
|
||||
protected JToken? _token;
|
||||
private static JsonSerializer _serializer = JsonSerializer.Create(SerializerOptions.WithConverters);
|
||||
|
||||
/// <inheritdoc />
|
||||
public bool IsJson { get; protected set; }
|
||||
|
||||
/// <inheritdoc />
|
||||
public abstract bool OriginalDataAvailable { get; }
|
||||
|
||||
/// <inheritdoc />
|
||||
public object? Underlying => _token;
|
||||
|
||||
/// <inheritdoc />
|
||||
public CallResult<object> Deserialize(Type type, MessagePath? path = null)
|
||||
{
|
||||
if (!IsJson)
|
||||
return new CallResult<object>(GetOriginalString());
|
||||
|
||||
var source = _token;
|
||||
if (path != null)
|
||||
source = GetPathNode(path.Value);
|
||||
|
||||
try
|
||||
{
|
||||
var result = source!.ToObject(type, _serializer)!;
|
||||
return new CallResult<object>(result);
|
||||
}
|
||||
catch (JsonReaderException jre)
|
||||
{
|
||||
var info = $"Deserialize JsonReaderException: {jre.Message}, Path: {jre.Path}, LineNumber: {jre.LineNumber}, LinePosition: {jre.LinePosition}";
|
||||
return new CallResult<object>(new DeserializeError(info, OriginalDataAvailable ? GetOriginalString() : "[Data only available when OutputOriginal = true in client options]"));
|
||||
}
|
||||
catch (JsonSerializationException jse)
|
||||
{
|
||||
var info = $"Deserialize JsonSerializationException: {jse.Message}";
|
||||
return new CallResult<object>(new DeserializeError(info, OriginalDataAvailable ? GetOriginalString() : "[Data only available when OutputOriginal = true in client options]"));
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
var exceptionInfo = ex.ToLogString();
|
||||
var info = $"Deserialize Unknown Exception: {exceptionInfo}";
|
||||
return new CallResult<object>(new DeserializeError(info, OriginalDataAvailable ? GetOriginalString() : "[Data only available when OutputOriginal = true in client options]"));
|
||||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public CallResult<T> Deserialize<T>(MessagePath? path = null)
|
||||
{
|
||||
var source = _token;
|
||||
if (path != null)
|
||||
source = GetPathNode(path.Value);
|
||||
|
||||
try
|
||||
{
|
||||
var result = source!.ToObject<T>(_serializer)!;
|
||||
return new CallResult<T>(result);
|
||||
}
|
||||
catch (JsonReaderException jre)
|
||||
{
|
||||
var info = $"Deserialize JsonReaderException: {jre.Message}, Path: {jre.Path}, LineNumber: {jre.LineNumber}, LinePosition: {jre.LinePosition}";
|
||||
return new CallResult<T>(new DeserializeError(info, OriginalDataAvailable ? GetOriginalString() : "[Data only available when OutputOriginal = true in client options]"));
|
||||
}
|
||||
catch (JsonSerializationException jse)
|
||||
{
|
||||
var info = $"Deserialize JsonSerializationException: {jse.Message}";
|
||||
return new CallResult<T>(new DeserializeError(info, OriginalDataAvailable ? GetOriginalString() : "[Data only available when OutputOriginal = true in client options]"));
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
var exceptionInfo = ex.ToLogString();
|
||||
var info = $"Deserialize Unknown Exception: {exceptionInfo}";
|
||||
return new CallResult<T>(new DeserializeError(info, OriginalDataAvailable ? GetOriginalString() : "[Data only available when OutputOriginal = true in client options]"));
|
||||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public NodeType? GetNodeType()
|
||||
{
|
||||
if (!IsJson)
|
||||
throw new InvalidOperationException("Can't access json data on non-json message");
|
||||
|
||||
if (_token == null)
|
||||
return null;
|
||||
|
||||
if (_token.Type == JTokenType.Object)
|
||||
return NodeType.Object;
|
||||
|
||||
if (_token.Type == JTokenType.Array)
|
||||
return NodeType.Array;
|
||||
|
||||
return NodeType.Value;
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public NodeType? GetNodeType(MessagePath path)
|
||||
{
|
||||
if (!IsJson)
|
||||
throw new InvalidOperationException("Can't access json data on non-json message");
|
||||
|
||||
var node = GetPathNode(path);
|
||||
if (node == null)
|
||||
return null;
|
||||
|
||||
if (node.Type == JTokenType.Object)
|
||||
return NodeType.Object;
|
||||
|
||||
if (node.Type == JTokenType.Array)
|
||||
return NodeType.Array;
|
||||
|
||||
return NodeType.Value;
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public T? GetValue<T>(MessagePath path)
|
||||
{
|
||||
if (!IsJson)
|
||||
throw new InvalidOperationException("Can't access json data on non-json message");
|
||||
|
||||
var value = GetPathNode(path);
|
||||
if (value == null)
|
||||
return default;
|
||||
|
||||
if (value.Type == JTokenType.Object || value.Type == JTokenType.Array)
|
||||
return default;
|
||||
|
||||
return value!.Value<T>();
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public List<T?>? GetValues<T>(MessagePath path)
|
||||
{
|
||||
if (!IsJson)
|
||||
throw new InvalidOperationException("Can't access json data on non-json message");
|
||||
|
||||
var value = GetPathNode(path);
|
||||
if (value == null)
|
||||
return default;
|
||||
|
||||
if (value.Type == JTokenType.Object)
|
||||
return default;
|
||||
|
||||
return value!.Values<T>().ToList();
|
||||
}
|
||||
|
||||
private JToken? GetPathNode(MessagePath path)
|
||||
{
|
||||
if (!IsJson)
|
||||
throw new InvalidOperationException("Can't access json data on non-json message");
|
||||
|
||||
var currentToken = _token;
|
||||
foreach (var node in path)
|
||||
{
|
||||
if (node.Type == 0)
|
||||
{
|
||||
// Int value
|
||||
var val = (int)node.Value!;
|
||||
if (currentToken!.Type != JTokenType.Array || ((JArray)currentToken).Count <= val)
|
||||
return null;
|
||||
|
||||
currentToken = currentToken[val];
|
||||
}
|
||||
else if (node.Type == 1)
|
||||
{
|
||||
// String value
|
||||
if (currentToken!.Type != JTokenType.Object)
|
||||
return null;
|
||||
|
||||
currentToken = currentToken[(string)node.Value!];
|
||||
}
|
||||
else
|
||||
{
|
||||
// Property name
|
||||
if (currentToken!.Type != JTokenType.Object)
|
||||
return null;
|
||||
|
||||
currentToken = (currentToken.First as JProperty)?.Name;
|
||||
}
|
||||
|
||||
if (currentToken == null)
|
||||
return null;
|
||||
}
|
||||
|
||||
return currentToken;
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public abstract string GetOriginalString();
|
||||
|
||||
/// <inheritdoc />
|
||||
public abstract void Clear();
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Json.Net stream message accessor
|
||||
/// </summary>
|
||||
public class JsonNetStreamMessageAccessor : JsonNetMessageAccessor, IStreamMessageAccessor
|
||||
{
|
||||
private Stream? _stream;
|
||||
|
||||
/// <inheritdoc />
|
||||
public override bool OriginalDataAvailable => _stream?.CanSeek == true;
|
||||
|
||||
/// <inheritdoc />
|
||||
public bool Read(Stream stream, bool bufferStream)
|
||||
{
|
||||
if (bufferStream && stream is not MemoryStream)
|
||||
{
|
||||
_stream = new MemoryStream();
|
||||
stream.CopyTo(_stream);
|
||||
_stream.Position = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
_stream = stream;
|
||||
}
|
||||
|
||||
var length = _stream.CanSeek ? _stream.Length : 4096;
|
||||
using var reader = new StreamReader(_stream, Encoding.UTF8, false, (int)Math.Max(2, length), true);
|
||||
using var jsonTextReader = new JsonTextReader(reader);
|
||||
|
||||
try
|
||||
{
|
||||
_token = JToken.Load(jsonTextReader);
|
||||
IsJson = true;
|
||||
}
|
||||
catch (Exception)
|
||||
{
|
||||
// Not a json message
|
||||
IsJson = false;
|
||||
}
|
||||
|
||||
return IsJson;
|
||||
}
|
||||
/// <inheritdoc />
|
||||
public override string GetOriginalString()
|
||||
{
|
||||
if (_stream is null)
|
||||
throw new NullReferenceException("Stream not initialized");
|
||||
|
||||
_stream.Position = 0;
|
||||
using var textReader = new StreamReader(_stream, Encoding.UTF8, false, 1024, true);
|
||||
return textReader.ReadToEnd();
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public override void Clear()
|
||||
{
|
||||
_stream?.Dispose();
|
||||
_stream = null;
|
||||
_token = null;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Json.Net byte message accessor
|
||||
/// </summary>
|
||||
public class JsonNetByteMessageAccessor : JsonNetMessageAccessor, IByteMessageAccessor
|
||||
{
|
||||
private ReadOnlyMemory<byte> _bytes;
|
||||
|
||||
/// <inheritdoc />
|
||||
public bool Read(ReadOnlyMemory<byte> data)
|
||||
{
|
||||
_bytes = data;
|
||||
using var stream = new MemoryStream(data.ToArray());
|
||||
using var reader = new StreamReader(stream, Encoding.UTF8, false, (int)Math.Max(2, data.Length), true);
|
||||
using var jsonTextReader = new JsonTextReader(reader);
|
||||
|
||||
try
|
||||
{
|
||||
_token = JToken.Load(jsonTextReader);
|
||||
IsJson = true;
|
||||
}
|
||||
catch (Exception)
|
||||
{
|
||||
// Not a json message
|
||||
IsJson = false;
|
||||
}
|
||||
|
||||
return IsJson;
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public override string GetOriginalString() => Encoding.UTF8.GetString(_bytes.ToArray());
|
||||
|
||||
/// <inheritdoc />
|
||||
public override bool OriginalDataAvailable => true;
|
||||
|
||||
/// <inheritdoc />
|
||||
public override void Clear()
|
||||
{
|
||||
_bytes = null;
|
||||
_token = null;
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user